Objective:To explore the etiology and drug resistance of the ICU ventilator-associated pneumonia.Methods: One hundred cases of patients with ventilator-associated pneumonia received in our ICU room were selected; the pathologic examination results were retrospectively analyzed.Results: One hundred and thirty five bacteria were isolated from 100 cases of patients with ventilator-associated pneumonia, including 95 cases of Gram-negative bacilli(70.5%), 34 cases of Gram-positive cocci(25.1%) and 6 cases of fungi(4.4%); The resistance rates of Pseudomonas aeruginosa and Klebsiella pneumoniae for cefazolin, gentamicin, levofloxacin, and trimethoprim-sulfamethoxazole were high; The resistance rate of Staphylococcus aureus for ceftazidime, ceftriaxone, cefepime, cefazolin, gentamicin, amikacin, ciprofloxacin, levofloxacin, cefoperazone/sulbactam and piperacillin were high.Conclusion: ICU ventilator-associated pneumonia pathogen was mainly Gram-negative bacteria, and showed multidrug resistance, imipenem and cefoperazone/sulbactam for most pathogens had better efficacy and worthy of clinical application.

This article summarized some in vitro models of drug absorption,whose shortcomings and virtues were compared in order to be convenient for researchers to know and select optimal model.

Objective:To study the expression of p73? and its clinical significance in breast carcinoma.Methods:The expression of p73? was detected by immunohistochemistry in 41 breast carcinoma tissues,13 benign breast tumor tissues and 8 normal breast tissues.Results:The positive expression of p73? was found in 20/41(48.8%) of breast carcinoma tissues,1/13(7.7%)of benign breast tumor tissues,0/8(0)of normal breast tissues.The positive expression rate of p73? in breast carcinoma tissues was significantly higher than that in benign breast tumor tissues or normal breast tissues(P

Objective:To find a better way to protect the security and interests of vulnerable groups by exploring the problem of protecting the vulnerable groups in drug clinical trial from the perspectives of ethics committees,organization and researchers.Methods:According to the relevant literature and the actual situation of the hospital,this paper analyzed the security issues of vulnerable groups comprehensively.Results:Only the ethics committees,organization and researchers work together,can it protect the security and interests of vulnerable groups to the greatest extents.Conclusion:Further research on the security of vulnerable groups not only promotes the development of human health,but also plays a decisive role in improving the protection of subjects in drug clinical trial.

Mantle cell lymphoma (MCL), is a disease with high heterogeneity, which is insensitivity to the chemotherapy and presents poor prognosis. Appearance of the Bruton tyrosine kinase (BTK) targeted inhibitors, such as ibrutinib, provides novel treatment strategy for MCL. This review focused on the latest achievements of BTK inhibitors in MCL treatment.

At present,conventional whole brain radiotherapy is the standard treatment for brain metastases and prophylactic cranial irradiation,and it can improve patients' clinical symptoms and survival.However,whole brain radiotherapy may induce cognitive function impairment and affect patients' long-term quality of life.The newest radiotherapy technology can protect the hippocampal gyrus during whole brain radiotherapy and then protect cognitive function and improve quality of life.This article reviews the methods and clinical value of hippocampal gyrus protection in whole brain radiotherapy,as well as related advances.

Objective To investigate the changes of plasma vascular endothelial growth factor( VEGF) of patients of advanced primary liver cancer before and after interventional treatment and its clinical Significance. Methods Forty-six patients with advanced primary liver cancer were performed the hepatic arterial chemoembolization and served as observation group. Sixty healthy people were served as control group and measured their level of serum VEGF. The level of serum VEGF of patients in observation group before treatment and intervention 1 month were measured. Results Before interventional treatment,the serum VEGF level of observation group were(510. 0 ± 310. 0)ng/L,significantly higher than that of control group((27. 0 ± 23. 0) ng/L,P﹤0. 001). After interventional treatment,he serum VEGF level decreased to(316. 4 ± 240. 7)ng/L and the difference was statistically significant( P=0. 036 ). After one month interventional treatment,4 cases were complete remission(8. 70%),34 cases were partial remission(73. 91%),6 cases were in stable(13. 04%),and 2 cases were progress( 4. 35%),and the total effective rate were 82. 61%( 38/46 ). The 38 cases who were complete remission and partial remission were been served as effective group,the other 8 cases were served as invalid group. The serum VEGF level in effective group were( 260. 6 ± 70. 5 )ng/L,lower than that in invalid group(( 346. 7 ± 61. 3 )ng/L,P = 0. 046 ). Conclusion Hepatic arterial chemoembolization treatment on primary liver cancer curative effect is a better approach. VEGF involves in the development of primary liver cancer,and the high serum VEGF level with poor prognosis can be the reference of efficacy.

OBJECTIVE: To evaluate the utilization and its trend of narcotic analgetics in this hospital.METHODS: The use of narcotic analgetics during the period 2005-2007 in our hospital was analyzed retrospectively.RESULTS: The consumption quantity of narcotic analgetics in our hospital increased year-on-year,much as in the consumption of morphine preparations,with oral morphine preparations dominating the 3 first places over the 3 years,however,the increase of pethidine was slowed down in consumption quantity.CONCLUSION: The use of narcotic analgetics in our hospital is rational on the whole,but measures should be taken to tighten the control on the use of narcotic analgetics.

The new generation high-sensitivity cardiac troponin assays have been used in clinic for nearly 5 years in China.In 2012,several new high-sensitivity assays have been approved to be used in clinic in other countries,and they are under inspection of Chinese Food and Drug Ddministration.Because the new generation assays' sensitivity is improved,acute coronary syndrome could have been diagnosed 2-3 hours earlier,and small cardiac injuries that could not be detected by previous assays are detectable now.But its advantages also bring challenges to doctors.Many doctors can't even use previous assays well.The clinical doctors and laloiatory stuffs need to comunicate and reach a consensus just like American doctors do before American food and drug administration approve it.